Bug 2502284 (CVE-2026-63864) - CVE-2026-63864 kernel: bpf: Propagate error from visit_tailcall_insn
Summary: CVE-2026-63864 kernel: bpf: Propagate error from visit_tailcall_insn
Keywords:
Status: NEW
Alias: CVE-2026-63864
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-19 15:01 UTC by OSIDB Bzimport
Modified: 2026-07-21 19:09 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


Attachments (Terms of Use)

Description OSIDB Bzimport 2026-07-19 15:01:56 UTC
In the Linux kernel, the following vulnerability has been resolved:

bpf: Propagate error from visit_tailcall_insn

Commit e40f5a6bf88a ("bpf: correct stack liveness for tail calls") added
visit_tailcall_insn() but did not check its return value.


Note You need to log in before you can comment on or make changes to this bug.